JPH0423921B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a method for constructing steel sheet piles, aggregates, etc. by utilizing the space on steel piles that are continuously press-fitted for earth retention at construction sites, etc. The present invention relates to a conveyance device for conveying materials.

(Prior art) Steel piles such as steel sheet piles are continuously driven in a line to form cofferdams, retaining walls, etc., and are used in architecture and civil engineering work. At such steel pile driving sites, steel piles must be constantly supplied, so the steel piles are transported using transport devices such as trucks and cranes and placed near the pile driver.

However, in places where construction sites are narrow, in the ocean or rivers, under bridges, in wetlands, etc., trucks, cranes, and other steel pile transportation equipment cannot be used, so steel pile press-in construction must be abandoned or forced to be carried out by boat or by hand. It was transporting piles, etc. Furthermore, even in areas where transport equipment can be accessed, due to the weight of the equipment and the weight of the loaded materials, it is necessary to secure footing by laying lining boards, etc. in passageways with poor footing, which is time-consuming and costly. .

Furthermore, in the conventional method, it was necessary to move and secure the location of the steel pile as the pile driver moved forward.

(Problems to be solved by the invention) In this way, in the conventional method of transporting piles, it is necessary to secure a place for the transport device such as a truck to pass through and a place for placing the piles, which limits the construction site and working conditions. This resulted in a decrease in work efficiency.

(Means for Solving the Problems) The present invention was made in view of the above conventional examples, and utilizes the space above existing piles for transporting construction materials such as steel piles. A track section is constructed at the upper end of the pile, and materials such as steel piles are transported by means of transport running on this track section.

(Function) A track section is provided on a large number of existing steel piles, a means of transportation is placed on this track section, construction materials such as press-fit piles are placed on the means of transportation, and the means of transportation is driven. The machine travels on the track and transports materials to the target construction site.

Embodiments of the present invention will be described below based on the drawings.

(Embodiment) FIG. 1 is a partially cutaway side view of an embodiment of the present invention.
FIG. 3 is an enlarged sectional view taken along the line A--A in FIG. 1.

In this embodiment, on a large number of existing piles 5, 5...
A long rail pedestal 6 is laid. In this case, the existing piles 5, 5... are press-fitted into the ground and stand firmly upright, so there is no problem with strength or stability.

In this embodiment, this rail pedestal 6 includes a long flat plate 61 and locking tools 62, 6 formed on this flat plate 61.
Consists of 2... A pair of locking tools 62 are vertically provided at appropriate locations on both ends of the flat plate 61, facing each other.
When installing the rail pedestal 6, the rail pedestal 6 is fixed onto the existing steel pile 5 by holding the upper end of the existing steel pile 5.

In this embodiment, the rail pedestal 6 is detachable from the existing pile 5, and if necessary, the rail 3 can be removed from the existing pile 5 and stored or reused. The locking method, that is, the structure of the locking tool 62 is not limited to this embodiment. Further, the rail pedestal 6 may be configured to be fixed to the existing pile 5.

Since the rail pedestal 6 is for stably placing the rail 3 on the existing pile 5 as described above, it may be provided over the entire bottom plate 3a of the rail 3 as in this embodiment. , as shown in FIG. 5 as another embodiment, the length of the rail pedestal 3 is shortened to the same extent as the width of the locking tool 62, and the rail 3 is separated into necessary parts such as the front end and the rear end. Even if you set it up, rail 3
The intended purpose of stable placement of the material can be achieved.

A rail 3 is fixed to the upper end of the rail pedestal 6. In this embodiment, this rail 3 was made of U-shaped steel sheet piles, which are the easiest to obtain at pile press-in sites.
The present invention is not limited to this, and for example, H steel or two parallel railway rails as described later can be used.

On the other hand, the transportation means running on the rail 3 is
It is composed of a towing vehicle 2 and a truck 1.

As shown in FIG. 3, the trolley 1 includes wheels 11, 11... supported by a support 15, a mounting table 12 fixed on the upper surface of the support 15, and , end plate 1 for preventing steel pile 4 from falling
A turntable 13 including parts 4 and 14 is configured to be rotatable. The size and number of carts 1 to be used are determined as appropriate depending on the object to be transported.

As will be described later, since the turntable 13 is used to prevent materials from falling when the transportation means runs around a curve, the mounting table 12 may be configured to rotate relative to the support 15 without using the turntable 13. .

The towing vehicle 2 is composed of wheels 21, 21..., a mounting table 23 for materials etc., a turntable 24, etc.
These structures are similar to the structure of the truck 1 described above.
Further, this towing vehicle 2 is provided with a drive section 28 in the front portion thereof, which incorporates a drive source such as an electric motor or an engine. The drive unit 28 allows the towing vehicle 2 to self-propel on the rail 3; however, in another embodiment, the drive unit 2
It is also possible to adopt a configuration in which the tow vehicle 2 is pulled by a rope or the like using an external power source without configuring the tow vehicle 8.

When using the conveying device of this embodiment configured in this way, the towing vehicle 2 and the trolley 1 are placed on the rail 3, and the mounting platform 23 of the towing vehicle 2 and the mounting platform 1 of the trolley 1 are placed on the rail 3.
An appropriate number of steel piles 4, 4, . . . are placed horizontally between the two. After that, the drive source of the towing vehicle 2 is activated,
Run on rail 3. At this time, due to the weight of the steel pile 4, the steel pile 4 is always pulled by the towing vehicle 2 in a close state, but even if a means for locking the steel pile 4 is provided on the mounting base 23 of the towing vehicle 2, good.

In this way, while the towing vehicle 2 is traveling with the steel piles 4 loaded, the width between the wheels of the bogie 1 and the towing vehicle 2 is approximately equal to the bottom plate 3a of the rail 3, and both sides of the rail 3 are 3b and 3b prevent both cars 1 and 2 from derailing, so both cars 1 and 2 can be guided by the rail 3 and travel to their destination.

As shown in Fig. 3, existing piles 5, 5...
When reaching the curve point of..., the steel pile 4 cannot bend, so the turntable 1 of the cart 1
3 and the turntable 24 of the towing vehicle 2 rotate relative to the respective mounting bases 12 and 23 to maintain the state in which the steel pile 4 is placed on both vehicles. I can drive without it.

As described above, according to this embodiment, a passageway with a width of about 0.5m is sufficient, which is much lower than the minimum width of about 3m required for the passage of conventional conveyance equipment such as trucks and cranes, so it can be used at narrow sites. However, it has become possible to supply steel piles, etc. Moreover, since this passage space is above the existing piles, there is no problem in supplying materials even on sites with poor footing, and the cost is only a fraction of the cost of installing conventional lining boards. It can be installed at about 1/5th the cost. Furthermore, the transportation means of this embodiment can also serve as a place for installing construction materials, thereby saving space for installing materials.

In another embodiment shown in FIG.
Two simple railway rails 63a, 63a are provided in parallel on the upper surface of 1, while four wheels 11
A groove 11a that engages with the rail 63a is also formed in the rail 63a. According to this embodiment, it is easy to manufacture and the rail is light, so it is convenient to move the rail holder 6.

(Effects of the Invention) As described above, according to the present invention, construction materials such as steel piles can be easily transported to the destination with a simple structure, so that pile press-in work can be carried out at sites where construction is difficult or impossible. etc. facilitated or made possible. It also has the effect of saving space for placing materials, etc.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway side view, FIG. 2 is a plan view showing a running state, and FIG. 3 is an enlarged sectional view taken along the line A-A in FIG. FIG. 4 is an enlarged sectional view showing another embodiment, and FIG. 5 is an explanatory plan view of another embodiment of the rail pedestal. 1... Trolley, 2... Traction vehicle, 3... Track section, 4
...Materials, 5...Existing piles, 6...Rail pedestals, 1
3,24...Turntable.

Claims (1)

[Claims] 1. A track section is formed at the upper end of a large number of existing piles, and a transport means that runs on the track section is formed, and construction materials, etc. are placed on the transport means and the track section is transported. Conveyance device.